4 files changed, 10 insertions, 0 deletions
diff --git a/libxcb/src/xcb_conn.c b/libxcb/src/xcb_conn.c
index 72c4af7c2..7a4ae5646 100644
--- a/libxcb/src/xcb_conn.c
+++ b/libxcb/src/xcb_conn.c
@@ -395,6 +395,9 @@ void _xcb_conn_shutdown(xcb_connection_t *c, int err)
 /* Return connection error state.
  * To make thread-safe, I need a seperate static
  * variable for every possible error.
+ * has_error is the first field in xcb_connection_t, so just
+ * return a casted int here; checking has_error (and only
+ * has_error) will be safe.
  */
 xcb_connection_t *_xcb_conn_ret_error(int err)
 {
diff --git a/libxcb/src/xcbint.h b/libxcb/src/xcbint.h
index b25f03b3e..67cf5711e 100644
--- a/libxcb/src/xcbint.h
+++ b/libxcb/src/xcbint.h
@@ -192,6 +192,7 @@ void _xcb_ext_destroy(xcb_connection_t *c);
 /* xcb_conn.c */
 
 struct xcb_connection_t {
+    /* This must be the first field; see _xcb_conn_ret_error(). */
     int has_error;
 
     /* constant data */
diff --git a/libxcb/xcb-proto/xcbgen/matcher.py b/libxcb/xcb-proto/xcbgen/matcher.py
index 6e45b236c..bfa315eb5 100644
--- a/libxcb/xcb-proto/xcbgen/matcher.py
+++ b/libxcb/xcb-proto/xcbgen/matcher.py
@@ -18,10 +18,12 @@ def import_(node, module, namespace):
     '''
     # To avoid circular import error
     from xcbgen import state
+    module.import_level = module.import_level + 1
     new_file = join(namespace.dir, '%s.xml' % node.text)
     new_root = parse(new_file).getroot()
     new_namespace = state.Namespace(new_file)
     execute(module, new_namespace)
+    module.import_level = module.import_level - 1
     if not module.has_import(node.text):
         module.add_import(node.text, new_namespace)
 
diff --git a/libxcb/xcb-proto/xcbgen/state.py b/libxcb/xcb-proto/xcbgen/state.py
index 52b8d8da7..a6ad3a11e 100644
--- a/libxcb/xcb-proto/xcbgen/state.py
+++ b/libxcb/xcb-proto/xcbgen/state.py
@@ -65,6 +65,8 @@ class Module(object):
         self.output = output
 
         self.imports = []
+        self.direct_imports = []
+        self.import_level = 0
         self.types = {}
         self.events = {}
         self.errors = {}
@@ -107,6 +109,8 @@ class Module(object):
 
     # Keeps track of what's been imported so far.
     def add_import(self, name, namespace):
+        if self.import_level == 0:
+            self.direct_imports.append((name, namespace.header))
         self.imports.append((name, namespace.header))
 
     def has_import(self, name):